basic_regex& assign( const basic_regex& other ); | (1) | (since C++11) |
basic_regex& assign( basic_regex&& that ); | (2) | (since C++11) |
basic_regex& assign( const CharT* s, flag_type f = std::regex_constants::ECMAScript ); | (3) | (since C++11) |
basic_regex& assign( const charT* ptr, size_t count, flag_type f = std::regex_constants::ECMAScript ); | (4) | (since C++11) |
template< class ST, class SA > basic_regex& assign( const std::basic_string<CharT,ST,SA>& str, flag_type f = std::regex_constants::ECMAScript ); | (5) | (since C++11) |
template< class InputIt > basic_regex& assign( InputIt first, InputIt last, flag_type f = std::regex_constants::ECMAScript ); | (6) | (since C++11) |
basic_regex& assign( std::initializer_list<CharT> ilist, flag_type f = std::regex_constants::ECMAScript ); | (7) | (since C++11) |
Assigns the contents to the regular expression.
1) Assigns the contents of
other
. flags()
and mark_count()
are equivalent to the values of other.flags()
and other.mark_count()
after the call. 2) Assigns the contents of
other
using move semantics. flags()
and mark_count()
are equivalent to the values of other.flags()
and other.mark_count()
before the assignment. After the call, other
is in a valid, but unspecified state. 3-7) Assigns a sequence of characters to the regular expression. The syntax flags are set to
f
. mark_count()
returns the number of marked subexpressions within the resulting subexpression after the call. 3) Assigns a null-terminated string pointed to by
s
. 4) Assigns a sequence of
count
characters, pointed to by s
. 5) Assigns the string
str
. 6) Assigns the characters in the range
[first, last)
. 7) Assigns the characters in the initializer list
ilist
.Parameters
other | - | another regular expression to assign |
s | - | pointer to a character sequence to assign |
str | - | string to assign |
first, last | - | the range of characters to assign |
ilist | - | initializer list containing characters to assign |
Type requirements | ||
- InputIt must meet the requirements of InputIterator . |
Return value
*this
.
Exceptions
1) (none)
2)
noexcept
specification: noexcept
3-7)
std::regex_error
if the supplied regular expression is not valid. The object is not modified in that case.Example
See also
operator=
| assigns the contents (public member function) |
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